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Home » Compete » July Challenge 2012
Try your hand at one of the practice
                 problems, and submit your solution in the language of your choice
                 (our judge accepts solutions in over 35+ languages). Receive points,
                 and move up through the CodeChef ranks. Get better, and better prepare
                 yourself for the competitions
NameCodeSuccessful SubmissionAccuracy
Addition chainsADDCHAIN9447.42
My Fair CoinsCSUMD61521.97
Dynamic GCDDGCD378.7
Chef's DreamDREAM58825
Equivalent Suffix TriesEST83.28
Favourite NumbersFAVNUM7516.45
The Gray-Similar CodeGRAYSC37614.46
Little Elephant and Bubble SortLEBOBBLE23321.96
Restaurant RatingRRATING45212.97
Gift RiftSAD140935.07

 

The July Contest has ended!

Editorials on each problem can be found here.

All problems have beed added to the practice section.

Solutions are public for all problems.

Winners Blog Post will be updated soon.

The New Contest Rating can be viewed here.

 

Rules:


Please do not discuss strategy, suggestions or tips in the comments during a live contest. Posting questions clarifying the problem statement is ok. If you are unsure, email us at feedback@codechef.com

Contest problems will become visible on July 1st 2012 at 15:00 hours IST. Check your timezone here.

You will receive one point for solving a problem (passing all test cases - no partial credit), regardless of the level of difficulty of that problem.

You can submit solutions as many times as you'd like, there are no penalties for incorrect submissions.

Each contest will have one min/max tie breaker problem, where the best solution will receive one point and all other solutions will receive a fraction based how close they come to the best solution.

Announcements

01/07/2012, 18:30 IST : The test data for RRATING has been changed. Please resubmit your solutions.

09/07/2012, 11:50 IST : The test data for GRAYSC has been changed and all the submissions have been rejudged. Regret the inconvinience caused.

CONTEST ENDED.

RESULTS

  • Global
  • India
  • Non-Indian
Programming Competition Fetching successful submissions
Rankings are refreshed every few minutes.

RECENT ACTIVITY


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RECENT COMMENTS

01:24 AM Jul 28th: wadhwa94 commented on Gift Rift: @admin : My program is able to solve all given example inputs correctly. But while...
08:58 PM Jul 11th: AnoopNarang commented on Favourite Numbers: any bug in this page ? my firefox memory usage is increasing like 4 mb every sec. ...
03:59 PM Jul 11th: uniquecode commented on The Gray-Similar Code: Try this: 5 3 2 3 1 3
03:43 PM Jul 11th: betlista commented on My Fair Coins: @Gaurav Rai: your solution runs in O(N) - too slow (not only for python)...
03:39 PM Jul 11th: vineetsetia commented on The Gray-Similar Code: i have seen the submissions and they are strictly incorrect...plz have a look to m...
02:58 PM Jul 11th: shashwat001 commented on Little Elephant and Bubble Sort: finally giving up !!!
11:52 AM Jul 11th: kavishrox commented on Addition chains: @admin problem is nice but should have been made so that all limits are within sta...
11:48 AM Jul 11th: argonaut commented on Addition chains: @mayank2k11 : u can use character string to store 10^100 :)
11:32 AM Jul 11th: mayank2k11 commented on Addition chains: In which data type 10^100 will accomodate in C?..plz help.
11:31 AM Jul 11th: mayank2k11 commented on Addition chains: @Admin why I am getting runtime error ?..submission id 1175427.

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